package com.example.admin.coolweather;

import android.app.ProgressDialog;
import android.support.v4.app.Fragment;
import android.support.v4.media.session.MediaControllerCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.example.admin.coolweather.db.City;
import com.example.admin.coolweather.db.County;
import com.example.admin.coolweather.db.Province;
import com.example.admin.coolweather.util.HttpUtil;
import com.example.admin.coolweather.util.Utility;

import java.io.IOException;
import java.net.ResponseCache;
import java.util.ArrayList;
import java.util.List;

public class Choose_AreaFragament extends Fragment {
    public static final int LEVEL_PROVINCE=0;
    public static final int LEVEL_CITY=0;
    public static final int LEVEL_COUNTY=0;
    private ProgressDialog progressDialog;
    private TextView titleText;
    private Button backButton;
    private ListView listView;
    private ArrayAdapter<String> adapter;
    private List<String> dataList =new ArrayList<>();
    private List<Province> provinceList;
    private List<City> cityList;
    private List<County> countyList;
    private Province selectedProvince;
    private City selectedCity;
    private County selectedCounty;
    private int currentLevel;
    private Object CountyList;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState){
        View view = inflater.inflate(R.layout.choose_area,container,false);
        titleText=(TextView) view.findViewById(R.id.title_text);
        backButton=(Button) view.findViewById(R.id.back_button);
        listView=(ListView) view.findViewById(R.id.list_view);
        adapter=new ArrayAdapter<>(getContext(),android.R.layout.simple_list_item_1,dataList);
        listView.setAdapter(adapter);
        return view;
    }
    @Override
    public void onActivityCreated(Bundle savedInstanceState){
        super.onActivityCreated(savedInstanceState);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener(){
            @Override
            public void onItemClick(AdapterView<?> parent ,View view,int position,long id){
                if(currentLevel==LEVEL_PROVINCE){
                    selectedProvince=provinceList.get(position);
                    queryCities();
                }else if (currentLevel==LEVEL_PROVINCE){
                    selectedCity=cityList.get(position);
                    queryCounties();
                }
            }
        });
        backButton.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                if (currentLevel == LEVEL_PROVINCE) {
                    queryCities();
                } else if (currentLevel == LEVEL_PROVINCE) {
                    queryProvinces();
                }
            }
        });
        queryProvinces();


    }

    private void queryProvinces() {
        titleText.setText("中国");
        backButton.setVisibility(View.GONE);
        provinceList=DataSupport.findvAll(Province.class);
        if (provinceList.size()>0){
            dataList.clear();
            for(Province province:provinceList){
                dataList.add(province.getProvinceName());
            }
            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel=LEVEL_PROVINCE;
        }else{
            String address="http://guolin.tech/api/china";
            queryFromServe(address,"province");
        }
    }



    private void queryCities() {
        titleText.setText(selectedProvince.getProvinceName());
        backButton.setVisibility(View.VISIBLE);
        cityList=DataSupport.where("provinceid=?",String.valueOf(selectedProvince.getId())).find(City.class);
        if (cityList.size()>0){
            dataList.clear();
            for(City city:cityList){
                dataList.add(city.getcityName());
            }
            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel=LEVEL_CITY;
        }else{
            int provinceCode=selectedProvince.getProvinceCode();
            String address="http://guolin.tech/api/china/"+provinceCode;
            queryFromServe(address,"city");
        }
    }
    private void queryCounties() {
        titleText.setText(selectedCity.getcityName());
        backButton.setVisibility(View.VISIBLE);
       CountyList=DataSupport.where("cityid=?",String.valueOf(selectedCity.getId())).find(County.class);
        if (countyList.size()>0){
            dataList.clear();
            for(County county:countyList){
                dataList.add(county.getcountyName());
            }
            adapter.notifyDataSetChanged();
            listView.setSelection(0);
            currentLevel=LEVEL_COUNTY;
        }else{
            int provinceCode=selectedProvince.getProvinceCode();
            int cityCode=selectedCity.getcityCode();
            String address="http://guolin.tech/api/china/"+provinceCode+"/"+cityCode;
            queryFromServe(address,"county");
        }
    }
    private void queryFromServe(String address, final String type) {
        showProgressDailog();
        HttpUtil.sendOkHttpRequest(address,new Callback(){
            @Override
            public void onResponse(Call call, ResponseCache response)throws IOException{
                String responseText=response.body().string();
                boolean result=false;
                if("province".equals(type)){
                    result= Utility.handleProvinceResponse(responseText);
                }else if ("city".equals(type)){
                    result=Utility.handleCityResponse(responseText,selectedProvince.getId());
                }else if ("county".equals(type)){
                    result=Utility.handleCountyResponse(responseText,selectedCity.getId());
                }
                if(result){
                    getActivity().runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            closeProgressDialog();
                            if("province".equals(type)){
                                queryProvinces();
                            }else if("city".equals(type)){
                                queryCities();
                            }else if("county".equals(type)){
                                queryCounties();
                            }
                        }
                    });
                }
            }
            @Override
            public void onFailure(Call call,IOException e){
                getActivity().runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        closeProgressDialog();
                        Toast.makeText(getContext(),"加载失败",Toast.LENGTH_SHORT).show();
                    }
                });
            }
        });
    }

    private void closeProgressDialog() {
        if(progressDialog==null){
            progressDialog=new ProgressDialog(getActivity());
            progressDialog.setMessage("正在加载中");
            progressDialog.setCanceledOnTouchOutside(false);
        }
    }

    private void showProgressDailog() {
        if(progressDialog!=null){
            progressDialog.dismiss();
        }
    }


}
